Michael Hollingshead was a British-born researcher in psychedelic drugs and hallucinogens including psilocybin and lysergic acid diethylamide, among others, at Harvard University in the mid-twentieth century. He was the Executive Secretary for the Institute of British-American Cultural Exchange in 1961.[1] Dr. John Beresford received a package of LSD from Sandoz Laboratories in Switzerland at a time when it was still legal to use in experiments, and he in turn gave one gram of it to Hollingshead. One experiment Hollingshead conducted involved studying the effects on web-weaving by spiders under the influence of the drug. He claims to have first tried LSD by licking the spoon of a batch of powdered sugar paste he had made in a mayonnaise jar for this purpose. (This jar was to become an object of psychedelic legend.) After his first experience, he contacted Aldous Huxley who suggested he get in contact with Timothy Leary to discuss LSD's potential.

In September 1961 he met Leary in Cambridge, and was invited to live in Leary's house and teach a course at Harvard. Shortly thereafter, he introduced Leary to LSD. He participated in the Concord Prison Experiment with Leary, Ralph Metzner, and several others in 1962. For the next few years, he worked with psychedelic therapists, lived at Millbrook with Leary and Richard Alpert (AKA Ram Dass). He then set up a New York-based project of his own together with Jean Houston, where guided trips were performed and data gathered which, according to Hollingshead's book, formed the core material for Masters and Houston's book Varieties Of Psychedelic Experience. In 1965 he moved to London where he opened the World Psychedelic Center. He also worked with experimental film, collaborating on the Scott Bartlett short subject "Moon 69", inspired by the 1969 Project Apollo orbit of the moon.

Hollingshead, Michael (1973) The Man Who Turned On the World. Abelard-Schuman Publ. New York (also Blond & Briggs, Ltd.)

The Sayings of Michael Hollingshead. Blotter Magazine Issue #3

Hollingshead, Michael (1968) Introduction to "Lightshow" Harbinger Magazine (produced by the Oracle staff as their 13th issue and attempted revival of the publication) Harbinger University Press, July 1968. by Michael Hollingshead